Sigma lights

Sigma owners, what brand/model of "tactical" lights do you have. What adapter did it need if any? I know the Streamlight TLR-3 uses different "keys" to fit to various weapons but the Sigma is not on their listed of those factory tested. Just started looking so any and all info you have will speed up the process. Thanks!

Ah.. wasn't sure if you were in the market for a Sigma or if you had one. Seems you have one.

As for the SD. I though it funny that SW goes through all the trouble to redesign the Sigma to correct all the problems that they built in to an otherwise good gun and after going through all the trouble they leave off the adjustable grip inserts.
That is the one item on the M&P that gave it the sales advantage over the Glock, that put SW ahead in many contracts. So they spend all the money redoing this pistol and totally over look the feature on another one of their products that put them ahead.

This was brought out in another forum I go to and I have to agree, it is another huge mistake on SW part.